42. Which of the following describe the process identifier that is used to run OSPF on a router? (Choose two.)
A. It is locally significant.
B. It is globally significant.
C. It is needed to identify a unique instance of an OSPF database.
D. It is an optional parameter required only if multiple OSPF processes are running on the router.
E. All routers in the same OSPF area must have the same process ID if they are to exchange routing information.
Answer: AC
解释:我们在配置OSPF的时候用router ospf 后面加process-id,这个process-id指的是OSPF在本router的哪个进程里面
或则说是标识一个OSPF的实例,在一台router上可以起多个OSPF的实例,并且这个process-id只是本地有效,没有
全局意义,所以答案是AC本帖隐藏的内容需要回复才可以浏览